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Finding the Fourth Proportional to 89,129.87, 133,604.84 and 55,873.29

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Solution

The fourth proportional to 89,129.87, 133,604.84 and 55,873.29 is: 83,753.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,129.87 : 133,604.84 = 55,873.29 : x
  2. Step 2: Convert to fraction form
    89,129.87/133,604.84 = 55,873.29/x
  3. Step 3: Cross multiply
    89,129.87x = 133,604.84 × 55,873.29
  4. Step 4: Simplify right side
    89,129.87x = 7,464,941,970.72
  5. Step 5: Solve for x
    x = 7,464,941,970.72/89,129.87
  6. Step 6: Final answer
    x = 83,753.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.